find each union or intersection let A={1, 2, 3,} B={x|xis and even whole number less than 9} C={2, 5, 7, 10,} and D={x|xis an odd whole number less than 10}
I have to find A an upside down U C
Can someone help
A∩C is the intersection of A and C. That is, all the elements which appear in both A and C.
So, what do you think?
A={1, 2, 3, 5, 7, 10} C={2, 5, 7, 10} A U C={0, 2, 4, 5, 6, 7, 8, 10,}
Like this
Where did you get the 0? With the sets A and C you just gave,
AUC = {1,2,3,5,7,10}
A∩C = {2,5,7,10}
Note that AUC = A and A∩C = C
because C is a subset of A
You won't get any 0 elements unless you start working with B.
To find the intersection (denoted by ∩) of two sets, you need to find the common elements between those sets. In this case, you want to find the intersection of sets A and C, which means you are looking for the elements that are present in both sets.
Set A = {1, 2, 3}
Set C = {2, 5, 7, 10}
To find the intersection of A and C, you need to identify the elements that are common to both sets.
Looking at the two sets, the common element is 2. Therefore, the intersection of A and C, denoted by A ∩ C, is {2}.
In this case, the set A ∩ C contains only one element, which is 2.